According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Arq are Director Julian Alexander Mcintyre (3.25Mn shares), Director Jeremy Blank (2.07Mn shares), Director Fundamental Advisers Llc Alta (2.03Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Julian Alexander Mcintyre | 3,250,267 | 03 Jul, 2025 | |
| Jeremy Blank | 2,066,196 | 03 Jul, 2025 | |
| Fundamental Advisers Llc Alta | 2,028,963 | 03 Jul, 2024 | |
| Robert E. Rasmus | Chief Executive Officer | 551,500 | 28 May, 2025 |
| Joseph M Wong | Chief Technology Officer | 367,738 | 06 Aug, 2025 |
| Richard Campbell-Breeden | 341,654 | 03 Jul, 2025 | |
| Greg Marken | Ceo | 186,411 | 27 Mar, 2023 |
| Jeremy Williamson | Chief Operating Officer | 135,288 | 19 Sep, 2025 |
| Louis Spencer Wells | 102,927 | 03 Jul, 2024 | |
| Carol S Eicher | 96,510 | 03 Jul, 2025 | |
| Claiborne Benson Smith | Gen Counsel And Corp Secretary | 82,438 | 06 Aug, 2025 |
| Stacia Hansen | Chief Accounting Officer | 73,199 | 06 Aug, 2025 |
| Taylor J. Simonton | 65,821 | 06 Jul, 2022 | |
| Jay Loring Voncannon | Chief Financial Officer | 65,000 | 13 Nov, 2025 |
| Morgan Fields | Chief Accounting Officer | 64,599 | 21 Aug, 2023 |
| Laurie Bergman | 51,702 | 03 Jul, 2025 | |
| Theodore James Sanders | General Counsel | 28,231 | 23 Nov, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Nov, 2025 | Richard Campbell-Breeden | Common Stock | A | 28,638 | $3.54 | 254,786 | I | P |
| 11 Nov, 2025 | Jay Loring Voncannon | Common Stock | A | 6,000 | $3.55 | 65,000 | D | P |
| 10 Nov, 2025 | Robert E. Rasmus | Common Stock | A | 50,000 | $3.79 | 70,718 | I | P |
| 10 Nov, 2025 | Jay Loring Voncannon | Common Stock | A | 9,000 | $3.74 | 59,000 | D | P |
| 25 Sep, 2025 | Julian Alexander Mcintyre | Common Stock | D | 30,000 | $0.00 | 3,191,289 | I | J |
| 25 Sep, 2025 | Julian Alexander Mcintyre | - | - | 3,191,289 | I | |||
| 18 Sep, 2025 | Jeremy Williamson | Common Stock | D | 2,029 | $7.00 | 135,288 | D | F |
| 04 Aug, 2025 | Joseph M Wong | Common Stock | D | 3,052 | $5.20 | 367,738 | D | S |
| 04 Aug, 2025 | Jeremy Williamson | Common Stock | D | 1,782 | $5.20 | 137,317 | D | S |
| 04 Aug, 2025 | Stacia Hansen | Common Stock | D | 2,742 | $5.20 | 73,199 | D | S |
| 04 Aug, 2025 | Stacia Hansen | - | - | 73,199 | D | |||
| 04 Aug, 2025 | Claiborne Benson Smith | Common Stock | D | 2,591 | $5.20 | 82,438 | D | S |
| 01 Jul, 2025 | Carol S Eicher | Common Stock | A | 14,552 | $0.00 | 96,510 | D | A |
| 01 Jul, 2025 | Laurie Bergman | Common Stock | A | 14,552 | $0.00 | 51,702 | D | A |
| 01 Jul, 2025 | Jeremy Blank | Common Stock | A | 29,104 | $0.00 | 78,762 | D | A |
| 01 Jul, 2025 | Richard Campbell-Breeden | Common Stock | A | 29,104 | $0.00 | 86,868 | D | A |
| 01 Jul, 2025 | Richard Campbell-Breeden | - | - | 86,868 | D | |||
| 01 Jul, 2025 | Julian Alexander Mcintyre | Common Stock | A | 21,828 | $0.00 | 58,978 | D | A |
| 23 May, 2025 | Robert E. Rasmus | Common Stock | A | 25,000 | $4.10 | 480,782 | D | P |
| 23 May, 2025 | Jeremy Blank | Common Stock | A | 50,000 | $4.10 | 49,658 | D | P |